Objective C - POST data using NSURLConnection

Question

I\'m very slowly working my way through learning the URL loading system for iOS development, and I am hoping someone could briefly explain the following piece of code:

Answer 1

The first line created an string, it can be replaced with:

NSString *myParameters = @"one=two&three=four";

It's written in initWithFormat so you can extend it to assign parameter value.

Second line indicate this is HTTP post request.

The third line, setHTTPBody method take NSData type, so you need to convert string type to NSData using dataUsingEncoding method.